So many little things wrong.

Worst was the mess of disembarkation. For early departure people, apparently there were too few customs agents but that's not a ship failure. What was just an utter mess was how the ship's crew handled it. As people poured from the elevators with their luggage, they ran into others who could not move because the line was right in front of the elevators. The resulting mess allowed latecomers to cut in anywhere and made for ultra-crowded and unsafe conditions. The crew should have organized a line away from the elevators and had enough people to organize the line.

Elevators intermittently signaled pending arrival at a floor with lights and sound then the lights would go out, the elevator would skip the floor but the call button would deactivate causing other elevators to also skip the floor until someone noticed and re-pressed the call button. Some elevators failed to signal arrive; the doors would open; nobody would notice this happening; the doors would close; the elevator was gone and the call button was deactivated. Read more